Connecticut Department of Revenue Services

Nov 15, 2009

OP-424, Business Entity Tax Return Due for Fiscal Year Filers

OP-424, Business Entity Tax Return - for Fiscal Year Filers is due the 15th day of the 4th month following the fiscal year end.
 
Click Here {TSC} To Begin
 
 
TSC - Simplified Paperless Filing for your Connecticut Withholding Tax, Sales and Use Taxes, Disaggregated Sales Tax Report, Business Entity Tax, Corporation Business Tax, Room Occupancy Tax, Attorney Occupational Tax, Admissions and Dues Tax, Trust and Estate, Composite Income Tax, and Nursing Home User Fee
 
The Nursing Home User Fee and the Disaggregated Sales Tax Report can only be filed through the TSC.
 
  
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